User:Vulpicida/Vulpicida canadensis

Description: Thallus foliose, with ascending lobes up to 6cm diameter. Both surfaces bright to deep yellow. Medulla yellow, soredia and isidia lacking. Apothecia usually presen and dark brown.

sensitive to air pollution.

Range is from BC to Cali, inland to Montana. Mainly east cascades.

Substrate: bark and wood, especially frequent on Pinus spp and Larix spp.

Habitat: Common, especially on twigs in conifer forests near water, but occasionally in upland habitats.

Differs from Vulpicida pinastri due to its lack of soredia.